Sony SAL35F14G Service Manual page 55

2) Attach the checking lens to the lens test projector, and set the equipments as shown in Fig. 4-4-2.
3) Turn the fan switch of the lens test projector to ON, then turn the lamp switch to ON.
Screen
A-mount attachment
Checking lens
Fan switch
Chart
Plane mirror
F L
Lamp switch
Lens test projector
Projection-distance
Fig. 4-4-2
4) Turn the focus ring of the checking lens until the chart image projected on the screen is the sharpest at the center (y'=0).
5) Set the plane mirror to the center of the projected image (y'= 0), and adjust the projector position so that the mirror reflects the light
to the center of the lens.
2. Checking Method
1) Turn the focus ring of the checking lens until the chart image projected on the screen is the sharpest at the center (y'=0).
2) Read the number of the smallest pitched lines at the center (y'= 0).
The number represents for lines per mm.
Saggital (S)
Meridional (M)
Fig. 4-4-3
SAL35F14G (1.4/35G) (35mm F1.4G)
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